The dark lobed material in this VIS image is a lava flow located northwest of the Elysium Volcanic Complex. The channel on the dark material was likely formed by the flow of lava rather than water.
Orbit Number: 54637 Latitude: 33.1545 Longitude: 133.458 Instrument: VIS Captured: 2014-04-08 15:51
Photo credit: NASA/JPL-Caltech/Arizona State University
Note: This channel and flows are located in Utopia Planitia, some distance from the Elysium Mons region.